Wire-coiling machine.



K. ROLLB.

WIRE GOILING MACHINE.

APPLICATION IILBIJ JUNE 20, 1913.

1,097,769. Patented May 26, 1914.

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I Lax BY Wag v K. ROLLE.

WIRE GOILING MACHINE.

APPLICATION FILED JUNE 20, 1913.

1,097,769. Pa tented May 26, 1914.

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K. ROLLE.

WIRE 00mm MACHINE.

APPLICATION FILED JUNE 20, 1913.

1,097,769, Patented May 26, 1914.

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v wwiw STATES KARL ROLLE, 0F NEWARK, NEW JERSEY, ASSIGNOR TO CHARLES A. BECKER, OF NEWARK, NEW J ERSEY.

URE-COILING MACHINE.

Specification of Letters Patent.

Patented May 26, 1914.

Application filed June 20, 1913. Serial No. 774,783.

To all whom it may concern Be it known that I, KARL ROLLE, a sub: ject of the Kaiser of Germany, residing at Newark, in the county of Essex and State of New Jersey, have invented certain Improvements in ire-Coiling Machines, of which the following is a specification.

The objects of this invention are to provide improved mechanism for winding wire into helical coils; to provide in such mecha nism a mandrel and sleeve one of which alternately winds the wire and pushes it along with respect to the other; to reduce wear on the mandrel and its inclosing parts, and thus prolong the life thereof; to feed the wire to the mandrel lengthwise thereof and reduce friction; to provide means with a rotary and reciprocating action for winding the wire onto said mandrel with minimum friction; to secure rapidity of coiling; to secure perfect synchronism of parts; to provide parts which may be readily renewed as occasion requires; to prevent torsional strain in coiling the wire; to secure smiplicity of construction and operation, and to obtain other advantages and results as may be brought out in the following description.

Referring to the accompanying drawings, in which like numerals of reference indicate the same parts throughout the several views, Figure l is a plan View of a machine embodying my invention; Fig. 2 1s a Vertical sectional view of the same taken on line AA of Fig. 1 looking in the direction 1ndicated by the arrows; Fig. 3 is also a sectional view of Fig. 1 taken on line 13-43 thereof looking in the direction of the ar row; Fig. 41 is a cross sectional view taken on.

line CC of Fig. 1 looking in the direction of the arrows; Fig. 5 is a detail sectional view similar to Fig. 4 but on larger scale showing the mandrel mounted in place with the feed spindle in retracted position; Fig. 1 6 is 'a similar detail sectional view showing the feed spindle in advanced position, and Fig. 7 is a detail sectional view on line DD of Fig. 5 looking in the direction indicated by the arrows.

In the specific embodiment of the invention illustrated in said drawings, the reference numeral 1 indicates a base at the rear end of which is supported in suitable bearings 2, 2 a driving shaft 3 extending crosswise of the base, and as shown said-shaft housing o -9 or the like. sleeve 7 is exposed by a recess 10 cut into front end, and substantially parallel to the driving shaft 3, is secured an upwardly extending housing 43 carrying longitudinally of itself, or cross-wise with respect to the base, a mandrel 6 which preferably projects from one end of the housing at a distance above the base 1. In its preferred embodiment, this mandrel G is nonrotatably mounted in a mandrel sleeve 7 closely fitting the mandrel and projecting from the substantially the same distance as the mandrel, said sleeve being secured substantially immovable 111 the houslng 6 by a set screw 8 or the like and the mandrel likewise secured in its sleeve by a set screw The inner end of the said the lateral face of thehousing away from the driving shaft 3, and as shown the end of the sleeve is flush with sald recess while the mandrel 6 projects into the recess and is thus exposed from the sleeve.

In axial alinement with the mandrel 6 and slidably mounted in the housing 5 at the opposite side of the recess 10, is a feed spindle 11 the forward end of which or end next the mandrel is hollow or socketed to hold a feed sleeve 12 fixed therein by a set screw 13 or the like and which feed sleeve rotatably and slidably receives the exposed inner end of the mandrel 6 so as to turn thereon and advance and retract with respect to it as will be described in greater detail hereinafter. The mandrel 6 has a helical groove 14 in its outer surface, extending from end to end of the mandrel and being of pitch and size corresponding to the coil to be made; obviously, the mandrel sleeve '7 covers this slot 14 for the length of said sleeve. The feed sleeve 12 has a longitudinal slot 15 in its end next the mandrel 6, adapted to receive the wire 16 to be coiled, and from said slot a groove 17 in the peripheral surface of the sleeve extends longitudinally to the other end of the feed sleeve; obviously, this groove 17 is covered by the spindle 11 in which the feed sleeve 12 is mounted, and longitudinally through said spindle, in alinement with the said groove 17, is bored a passage 18 for the wire to be supplied from any suitable source. It will be understood that the completed coil is delivered from the end of the mandrel 6 which projects from the base 1, as shown in Figs. 5 and 6.

It will be noted from an inspection of Figs. 5, 6 and 7 that the end wall 52 of the slot 15, over which the wire is led to the groove 14- of the mandrel, is tangential to said groove, so that the wire is readily fed to the groove, and that the corner where the slot 15 joins the groove 17 is rounded or curved to reduce friction on the wire in passing over it.

To coil the wire, the feed spindle 11 and its attached teed sleeve 12 are rotated in one direction and retracted longitudinally with respect to the mandrel 6, the rates of such movements being adapted to wind the wire into the rear convolutions of the groove 14 and form the coil and then both the retation of the feed spindle and its longitudi nal movement are reversed to push the formed coil along the mandrel 6 or oil the same. To obtain this action, I have eX- tcriorly threaded the feed s indle 11 to provide a worm 19 intermediate of its ends, said threads having a pitch corresponding to that of the convolutions of the helical groove 1"- in the mandrel. i1 pin 20 is inserted in an appropriate recess in the housing 5 directed toward the feed spindle and is provided with an end adapted to fit into the threads 19, and thus merely turning the feed spindle will give it the desired screw motion. For illustrative purposes I have shown this pin 20 retained in its recess by a set screw 21 inserted longitudinally into one end of the housing 5, but obviously this pin could be of any other equivalent construe tion without departing from the spirit of the present invention.

It is preferable in the operation of the device to revolve or turn the feed spindle 11 through one complete revolution back and forth, and this is effected by providing upon the feed spindle at its end away from the mandrel 6, a pinion 22 which is driven by a segmental gear or arcuate rack 23 the teeth of which mesh with those of the pinion. An operating arm 2t integral with said segmental gear and projecting from the same on the opposite side of its pivotal support from the teet is oined as by a rod or link 25 to an eccentric strap upon an eccentric 2? on the driving shaft 3. lit is to be understood, however, that other equivalen means 1 'ituted for-producing the oscillatory motion of the segmental gear pi: ion if found desirable at any time, r do not wish to be construed as limiting sell to this particular construction.

lVhen the feed spindle 11 is given a retractive twist, drawing 05 from the mandrel 6, it is desirable to pinch or clamp the wire 16 to the. mandrel so that said retractive twist of the feed spindle will positively wind the wire into the helical groove'l t of the mandrel thus producing another turn in the wire coil. At the completion of this retractive twist. of the feed spindle, and during the subsequent advancing stroke or twist, the pinching or clamping of the wire is released, since the wire coil is sufficiently rigid to slide in the helical groove 1% and be turned within said groove by the feed spindle and project the coil from the outer end of the mandrel. Then the wire is again clamped or pinched and the process repeated. In order to thus clamp and release the wire alternately I provide in the housing 5 a pin 28 projecting through the mandrel sleeve 7 with its inner end adapted to enter the groove 14 perpendicularly, whereby inward movement of said clamping pin 28 causes it to contact with the wire 16 in said groove 1%, and clamp it to the mandrel 6. l have shown said pin normally clamped by means of a lever 29 pivoted on the housing 5 cross-wise of the base 1 or substantially parallel to the driving shaft 3. Said lever 29 has at its end above the clamping pin an adjusting screw 30 for engaging the head of the pin, and at its other end on the opposite side of its fulcrumal support 31 from said adjusting screw 30 is a compression sprin 32 between the housing 5 and the lever seated in suitable recesses in each and tending to move the adjacent end of the lever away from the housing and the other or opposite end toward the housing. By this means the clamping pin 28 is normally held in engagement with the wire and for releasing it therefrom during appropriate intervals, I provide a cam 33 on the driving shaft 3 operating through a suitable cam lever 34 to raise the end of the lever 29 carrying the clamping pin, see Figs. 2 and 3. 1X5 here shown, said cam lever 34 is pivoted as at 35 intermediate of its ends to a standard 36 atlixed to the base 1, and is provided at its end with an adjusting screw 37 adapted to engage the clamping pin lever 29 on its arm normally raised by the spring 32. The other end of the cam lever is provided with an adjusting screw 38 carrying a cam enrollcr 39. Gbviously, through this mechanism, as the cam rotates and raises its adjacent end of the cam lever 34., the spring pressure on the clamping pin 28 is removed, as indicated in Fig. 6, so that the wire 16 is left free to slide around the helical groove 14.

lVire may be fed into the passage-way 1 8 of the feed spindle 11 from any suitable supply means, but in the drawing I have shown a reel 40 supported at one side of the base 1, from which reel the wire extends to the said passage-way. Inasmuch as the feed. spindle into which the wire is fed from the reel is turning back and forth, and is comparatively close to the reel whereby the length of wire between the reel and spindle is limited in length, it is preferable not to subject this limited length of wire to torsional strain with each twist of the spindle. For this reason I mount the reel on suitable means whereby it can be given angular dis placement corresponding to that of the spindle simultaneously therewith. The particular means herein shown to illustrate such a mounting comprises a fork 41 carrying between its arms 42, 43 the reel 40 upon a pin 44 extending between said arms. The shank 45 of said fork is substantially perpendicular to the reel pin 44 and is rota tably mounted in a bracket 46 secured to the base 1, the axis of rotation of the fork 41 being substantially parallel to that of the feed spindle 11. The oscillatory or rotative movement of the fork 41 may be obtained in any desired manner to synchronize with the angular movement of the feed-spindle 11, and as here shown, is obtained through the agency of a pinion 47 on the said shank 45 of the fork meshing with a segmental gear or arcuate rack 48 similar in construction to those described to operate the spindle 1. Said arcuate rack 48 has projecting on the opposite side of its pivotal support from its teeth, an operating arm 49 which is rocked back and forth by an eccentric rod 50 extending to an eccentric 51 on the driving shaft 3. The reel of wire thus turns with the feeding spindle 11, and there is no torsional strain on the wire.

Obviously, various modifications and changes in the detail parts of my improved machine can be made by those skilled in the art, without departing from the spirit and scope of the invention, and I do not wish to be understood as restricting myself herein except as required by the claims when construed in the light of the prior art.

Having thus described the invention what I claim is:

1. In a machine of the character described, the combination of amandrel having a groove of the form of the coil to be wound, means covering said groove for a portion of the length of said mandrel, a feeding sleeve receiving another portion of the length of the mandrel and providing a guideway for conducting wire to the groove of the man drel, and means for giving said feeding sleeve a screw motion alternately in oppo site directions with respect to the mandrel and covering means.

2. In a machine of the character described, the combination of a mandrel having a groove of the form of the coil to be wound, means covering said groove for a portion of the length of said mandrel, a feeding sleeve receiving another portion of the length of the mandrel and providing a guideway for conducting wire to the groove of the mandrel, means for giving said feeding sleeve ascrew motion alternately in opposite directions with respect to the mandrel and covering means, and means for clamping the wire in the said covered portion of the groove of the mandrel while the sleeve is moving away from said covered portion and releasing it while the sleeve is movingtoward said covered portion.

3. In a machine of the character described, the combination of a stationary mandrel having a groove of the form of the coil to be wound, a portion of said grooved mandrel being exposed, and means for alternately winding wire onto said exposed portion of the mandrel and pushing it along said mandrel.

4. In a machine of the character described, the combination of a stationary mandrel having a groove of the form of the coil to be wound, means for alternately winding wire onto one end of said mandrel and pushing it along said mandrel, and means for confining the wound wire at the other end of said mandrel.

5. In amachine of the character described, the combination of a stationary mandrel having a groove of the form of the coil to be wound, and means for alternately winding wire in said groove of the mandrel and pushing it along said mandrel.

G. In a machine of the character described, the combination of a stationary mandrel providing an open groove at one portion of itself and a closed groove at another portion, and means for alternately winding wire into said open groove and propelling it through said covered groove.

7. In a machine of the character described, the combination of a stationary mandrel providing an open groove at one portion of itself and a closed groove at another portion, means for alternately winding wire into said open groove and propelling it through said covered groove and means for intermittently clamping the wire with respect to the mandrel.

8. In a machine of the character described, the combination of a stationary mandrel providing an open groove at one portion of itself and a closed groove at another portion, a feed sleeve receiving the end of the mandrel having the open groove, and means for giving said feeding sleeve a screw motion alternately in opposite directions.

9. In a machine of the character described, the combination of a mandrel, tubular members inclosing adjacent portions of the length of said mandrel and forming therewith a spiral passage, means for giving one of said members a screw motion alternately in opposite directions, and means for clamping wire in the other member while the first-mentioned member is moving away from it and releasing the wire while said firstanentioned member is moving toward it.

10. In a machine of the character described, the combination of a stationary mandrel providing an open groove at one portion of itself and a closed groove at another portion, of a feed sleeve receiving the end of the mandrel having the open groove, a spindle carrying said feed sleeve, and means for alternately giving said spindle a screw motion in opposite directions.

11. In a machine of the character described, the combination with a grooved mandrel, of a feed sleeve having a wire passage one portion of which is tangential to the grooved surface of the mandrel and another portion of which extends longitudinally of the sleeve.

12. In a machine of the character described, the combination with a grooved n'iandrel, of a feed sleeve having a wire passage one portion of which is tangential to the grooved surface of the mandrel and another portion of wnich is in a diametric plane of the sleeve and substantially parallel to its axial line.

13.111 a machine of the character described the combination with a mandrel, and means for feeding wire to said mandrel with reciprocating ICl'OW motion, of a wire supply adapted to oscillate in synchronism with said feeding means.

1%. In a machine of the character described, the combination with a mandrel and means for feeding wire to said mandrel with a reciprocating screw motion, a reel for supplying wire to said means, and means to oscillate said reel in synchronism with said feeding means.

15. In a machine of the character described, the combination with a mandrel and means for feeding wire to said mandrel with a reciprocating screw motion, of means for mounting a reel rot-atably whereby wire may be unwound therefrom, and means to oscillate said mounting means and reel in synchronism with said feeding means about an axis transverse to the rotatable mounting of said reel.

16. In a machine of the character described, the combination with a mandrel and means for feeding wire to said mandrel with a reciprocating screw motion, of a fork adapted to rotatably mount within itself a coil of wire, a shank from said fork, and means to oscillate said shank and fork in synchrcnism with the feeoing means.

17.111 a machine of the charac er described, the combination with a mandrel and means for feeding wire to said mandrel with a reciprocating screw motion, of a fork having separated arms, an axle between said arms adapted to rotatably mount a coil of wire, and means to oscillate said fork transverse to said axle.

18. In a machine of the character described, the combination with a non-rotatable mandrel, of means for alternately winding wire on said mandrel and propelling it longitudinally of the mandrel.

19. In a machine of the character described, the combination with a stationary mandrel, of an oscillatory sleeve surrounding the mandrel at one end thereof and adapted to feed wire thereto, and a pin for clamping said wire to the mandrel during the period of oscillation of said sleeve in one direction and releasing said pin from ongagement with said wire during the period of oscillation of said sleeve in the other diection.

20. in a machine of the character de scribed, the combination with a non-rotatable mandrel, of means for alternately winding wire on said mandrel and propelling it longitudinally of the mandrel, and means for clamping the wire while winding and releasing it while propelling.

21. In a machine of the character described, the combination of a stationary mandrel having an extoriorly grooved portion, a rotatable feed sleeve inclosing an end portion of the mandrel and having a guid way for wire, means for rotating said feed sleeve and at the same time maintain a tangential intersection of the said guideway and groove during rotation of said feed sleeve, and means for feeding wire to said sleeve longitudinally thereof during its rotation.

an. In a machine of the character described, the combination with a stationary mandrel, and means for feeding wire to Said mandrel with a reciprocating screw motion, of a wire supply adapted to oscillate in synchronism with said feeding means.

23.111 21- machine of the character described, the combination with a stationary mandrel and means for feeding wire to said mandrel with a reciprocating screw motion, of a reel for supplying wire to said means, and means to oscillate said reel in synchronism with said feeding means.

21 In a machine of the cnaracter described, the combination with a stationary mandrel and means for feeding wire to said mandrel with a reciprocating screw motion, of means for mounting a reel rotatably whereby wire may be unwound therefrom, and means to oscillate said mounting means and reel in synchronism vith said feeding means about an axis transverse to the rot-atablo moon-ting of said reel.

25. In a machine of the character described. the combination with a mandrel. adapted to receive convolutions of coiled wire upon itself, of a pin transverse to said mandrel adapted to intermittently clamp the wire to the mandrel and means for winding wire upon the mandrel while clamped thereto and propelling it thereon when released.

26. In a machine of the character described, the combination with a stationary mandrel adapted to receive convolutions of a coil of wire, of a hous ng for said mandrel, a pin slidable in said housing normally pressing at one end against the wire; means to relieve said pressure, and means to advance the coil of wire along said mandrel during such period when the pressure or" said pin is released from the wire.

27. In a machine of the character described, the combination with a stationary spindle, of a rotary feed spindle overlying one end thereof, a pinion on said feed spindle, a segmental gear meshing with said pinion, means to rock said segmental gear to rotate the feed spindle alternately in opposite directions, and means for sliding said feed spindle longitudinally of the mandrel simultaneously with said rotation.

28. In a machine of the character described, the combination of a non-rotatable mandrel having a groove of the form of the coil to be wound, a portion of said grooved mandrel being exposed, and means for alternately winding wire onto said exposed portion of the mandrel and pushing it along said mandrel.

29. In a machine of the character described, the combination of a non-rotatable mandrel having a groove of the form of the coil to be wound, means for alternately winding wire onto one end of said mandrel and pushing it along said mandrel, and means for confining the wound Wire at the other end of said mandrel.

30. In a machine of the character described, the combination of a non-rotatable mandrel having a goove of the form of the coil to be wound, and means for alternately winding wire in said groove of the mandrel and pushing it along said mandrel.

31. In a machine of the character described, the combination of a mandrel providing an open groove at one portion'of itself and a. closed groove at another portion, and means for alternately winding wire into said open groove and propelling it through said covered groove.

32. In a machine of the character described, the combination of a mandrel providing an open groove at one portion of itself and a closed groove at another portion, means for alternately winding wire into said open groove and propelling it through said covered groove, and means for intermittently clamping the wire with respect to the mandrel.

33. In a machine of the character described, the combination of a mandrel providing an open groove at one portion of itself and a closed groove at another portion,

a feed sleeve receiving the end of the mandrel having the open groove, and means for giving said feeding. sleeve a screw motion alternately in opposite directions.

34. In a machine of the character described, the combination of a mandrel providing an open groove at one portion of itself and a closed groove at another portion, of a feed sleeve receiving the end of the mandrel having the open groove, a spindle carrying said feed sleeve, and means for alternately giving said spindle a screw motion in opposite directions.

85. In a machine of the character described, the combination with a mandrel, and means for feeding wire to said mandrel with a reciprocating screw motion, of a wire supply adapted to oscillate in synchronism with said feeding means. 7

36. In a machine of the character described, the combination with a mandrel and means for feeding wire to said mandrel with a reciprocating screw motion, of a reel for supplying wire to said means, and means to oscillate said reel in synchronism with said feeding means.

37. In a machine of the character described, the combination with a mandrel and means for feeding wire to said mandrel with a reciprocating screw motion, of means for mounting a reel rotatably whereby wire may be unwound therefrom, and means to oscillate said mounting means and reel in synchronism with said feeding means about an axis transverse to the rotatable mounting of said reel.

38. In a machine of the character described, the combination of a mandrel, a tubular member inclosing a portion of the length of said mandrel and forming there with a spiral passage, means for giving one of said parts a screw motion alternately in opposite directions with respect to the other said part, and means for clamping the wire during motion in one direction and re leasing it during motion in the other di rection.

39. In a machine of the character described, the combination of a mandrel, a tubular member inclosing a portion of the length of said mandrel and forming therewith a spiral passage, means for giving one of said parts a screw motion alternately in opposite directions with respect to the other said part, a stationary member, and means for clamping the wire with respect to said stationary member during said screw motion in one direction and releasing it during the screw motion in the other direction.

40. In a machine of the character described, the combination of a mandrel, tu bular members inclosing adjacentportions of the length of said mandrel and forming therewith a spiral passage, means for givmg one of said members a screw motion al therewith a spiral passage, means for givin said movable member a screw motion alternately in opposite directions With respect to the other member, and means for clamping the Wire during said motion in one direction and releasing it during said motion in the other direction.

KARL ROLLE.

Vitnesses:

HOWARD P. KING,

i l l 1 1 l MILDRED E. BROOKS.

copies of this patent may be obtained for five cents each, by addressing the Commixsioner of Patents. Washington, D. C." 

